▎ 摘　　要

NOVELTY - Preparation of graphene hot melting anti-corrosion paint involves mixing vinyl acetate monomer and solvent, adding initiator, mixing, adding into the reactor, purging with inert gas, stirring at certain speed to deoxidize the raw materials, introducing ethylene monomer and heating for polymerization to obtain ethylene-vinyl alcohol copolymer precursor where solvent is composed of methanol, ethanol and t-butanol and the mass ratio of vinyl acetate monomer and solvent is 1:1.5-3. USE - Method for preparing graphene hot melting anti-corrosion paint (claimed). DETAILED DESCRIPTION - Preparation of graphene hot melting anti-corrosion paint comprises: (A) mixing vinyl acetate monomer and solvent, adding initiator, mixing, adding into the reactor, purging with inert gas, stirring at certain speed to deoxidize the raw materials, introducing ethylene monomer and heating for polymerization to obtain ethylene-vinyl alcohol copolymer precursor where solvent is composed of methanol, ethanol and t-butanol, the mass ratio of vinyl acetate monomer and solvent is 1:1.5-3 and the initiator is azobisisobutyronitrile, peroxy neodecanoate or pentaerythritol with added amount of 0.2-1 wt.% of the total mass of vinyl acetate monomer and solvent; (B) mixing graphene oxide and silane coupling agent at mass ratio of 10:1-3, performing ultrasonic dispersion treatment, heating in water bath, stirring, rinsing and drying to obtain coupling agent-modified graphene oxide; (C) mixing silane coupling agent-modified graphene oxide with ethylene-vinyl alcohol copolymer precursor at weight ratio of 1:5-8, stirring to complete binding reaction, cutting, granulating and extruding to obtain composite particles of graphene oxide and ethylene-vinyl alcohol copolymer; and (D) refining into dry powder in ultrafine mill and sieving to appropriate particle size.